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  <STUDY accession="ERP137177" alias="c2553fec-84b0-43d0-816f-42f467e42e53" center_name="Institut de Ciencies del Mar ICM-CSIC">
    <IDENTIFIERS>
      <PRIMARY_ID>ERP137177</PRIMARY_ID>
      <EXTERNAL_ID namespace="BioProject">PRJEB52452</EXTERNAL_ID>
      <SUBMITTER_ID namespace="Institut de Ciencies del Mar ICM-CSIC">c2553fec-84b0-43d0-816f-42f467e42e53</SUBMITTER_ID>
    </IDENTIFIERS>
    <DESCRIPTOR>
      <STUDY_TITLE>Malaspina Expedition 2010 Microbial Vertical Profiles Metagenomes</STUDY_TITLE>
      <STUDY_TYPE existing_study_type="Other"/>
      <STUDY_ABSTRACT>Here we present a dataset of 76 microbial metagenomes of the picoplankton size fraction (0.2-3.0 µm) collected in 11 stations along the Malaspina Expedition circumnavigation (http://www.expedicionmalaspina.es; Duarte 2015) that cover  vertical profiles sampled at 7 depths, from the surface to 4,000 m deep (or the sea floor in shallower waters), plus 5 additional metagenomes. This Malaspina Microbial Vertical Profiles metagenomes (MProfile) dataset produced 1.66 Tbp of raw DNA sequences. Six L seawater samples were collected and filtered through a 200 and a 20 µm mesh to remove large plankton, the prokarotic free-living size fraction (0.2 to  3.0 µm) was recovered in each sample by pumping water serially through 47-mm polycarbonate membrane filters of 3.0 µm and 0.22 µm pore sizes with a peristaltic pump. DNA was extracted using a standard phenol-chloroform protocol and was sequenced at the National Center for Genomic Analsis (CNAG-CRG. Barcelona, Spain; www.cnag.es), funded by project MALASPINOMICS (CTM2011-15461-E, led by Carlos M Duarte) on the Illumina HiSeq2000 sequencing platform utilizing a TruSeq paired-end cluster kit, v3, following a 2x100 indexed run recipe.   References: Duarte CM. 2015. Seafaring in the 21St Century: The Malaspina 2010 Circumnavigation Expedition. Limnology and Oceanography Bulletin 24:11-14; Sánchez, P. et al., 2023. Marine picoplankton metagenomes from eleven vertical profiles obtained by the Malaspina Expedition in the tropical and subtropical oceans. bioRxiv 2023.02.06.526790; doi: https://doi.org/10.1101/2023.02.06.526790</STUDY_ABSTRACT>
      <CENTER_PROJECT_NAME>Malaspina Microbial Vertical Profiles Metagenomes</CENTER_PROJECT_NAME>
      <STUDY_DESCRIPTION>Here we present a dataset of 76 microbial metagenomes of the picoplankton size fraction (0.2-3.0 µm) collected in 11 stations along the Malaspina Expedition circumnavigation (http://www.expedicionmalaspina.es; Duarte 2015) that cover  vertical profiles sampled at 7 depths, from the surface to 4,000 m deep (or the sea floor in shallower waters), plus 5 additional metagenomes. This Malaspina Microbial Vertical Profiles metagenomes (MProfile) dataset produced 1.66 Tbp of raw DNA sequences. Six L seawater samples were collected and filtered through a 200 and a 20 µm mesh to remove large plankton, the prokarotic free-living size fraction (0.2 to  3.0 µm) was recovered in each sample by pumping water serially through 47-mm polycarbonate membrane filters of 3.0 µm and 0.22 µm pore sizes with a peristaltic pump. DNA was extracted using a standard phenol-chloroform protocol and was sequenced at the National Center for Genomic Analsis (CNAG-CRG. Barcelona, Spain; www.cnag.es), funded by project MALASPINOMICS (CTM2011-15461-E, led by Carlos M Duarte) on the Illumina HiSeq2000 sequencing platform utilizing a TruSeq paired-end cluster kit, v3, following a 2x100 indexed run recipe.   References: Duarte CM. 2015. Seafaring in the 21St Century: The Malaspina 2010 Circumnavigation Expedition. Limnology and Oceanography Bulletin 24:11-14; Sánchez, P. et al., 2023. Marine picoplankton metagenomes from eleven vertical profiles obtained by the Malaspina Expedition in the tropical and subtropical oceans. bioRxiv 2023.02.06.526790; doi: https://doi.org/10.1101/2023.02.06.526790</STUDY_DESCRIPTION>
    </DESCRIPTOR>
    <STUDY_ATTRIBUTES>
      <STUDY_ATTRIBUTE>
        <TAG>ENA-FIRST-PUBLIC</TAG>
        <VALUE>2023-02-07</VALUE>
      </STUDY_ATTRIBUTE>
      <STUDY_ATTRIBUTE>
        <TAG>ENA-LAST-UPDATE</TAG>
        <VALUE>2023-02-07</VALUE>
      </STUDY_ATTRIBUTE>
    </STUDY_ATTRIBUTES>
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